Sodium layered oxide as cathode material for sodium ion battery
US10601039B2 · kind B2 · utility
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Key dates
| Filing date | Jul 15, 2015 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Dec 6, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mixed oxide of sodium and transition metals having the formula (1): Nax[MnaNibCoc]O2+y (1) wherein: 0.5≤x≤0.9, −0.1≤y≤0.1, a+b+c=1, 4a+2b+3c=4−x+2y, and 0<c≤0.5. Further a process for producing such a mixed oxide, a positive electrode including such a mixed oxide and a sodium ion secondary battery including such a positive electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.